Display screen or portion thereof with icon set



The sole FIGURE is a display screen or portion thereof with icon set showing our new design.

The peripheral dashed broken lines illustrate a display screen or portion thereof, and form no part of the claimed design.

The bracket shown in the figure indicates a set; the bracket itself forms no part of the claimed design. The elements of the set are arranged relatively on the drawing sheet for the convenience of illustration, and the placement of each element relative to another, or to the drawing sheet, forms no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with icon set, as shown and described. 